Universität Wien FIND
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270109 VO+UE Colloid and Interface Science (2016W)

4.00 ECTS (3.00 SWS), SPL 27 - Chemie
Prüfungsimmanente Lehrveranstaltung

Vorbesprechung im Rahmen der Wahlfach-Vorbesprechung am 22.06.2016, n.Ü.

Details

max. 50 Teilnehmer*innen
Sprache: Englisch

Lehrende

Termine

Zur Zeit sind keine Termine bekannt.

Information

Ziele, Inhalte und Methode der Lehrveranstaltung

Particle interactions: van der Waals Forces
Particle Interactions: Electrical Double layer
Particle Interactions: The effect of Polymers
Kinetic properties of particles
Interfaces
Surface Tension and Wetting
Surfactants
Emulsions
Rheology of dispersed media
Foams and Flotation

Art der Leistungskontrolle und erlaubte Hilfsmittel

Open-book examination

Mindestanforderungen und Beurteilungsmaßstab

For the students to familiarise themselves with the fundamentals of colloid and interface science: for example to understand the nature of the various inter-particle forces, how they can be calculated and applied. To understand the origins of surface tension, how surface tension can be modified by the addition of surfactants. To know the nature of the different classes of surfactants, and how they modify the properties of interfaces, be they solid, liquid or gas. Finally an example of how colloidal phenomena are actually applicable in industry namely oil extraction is given.

At the end of the course the students should know:
- significant forces between colloidal particles, how they can be calculated approximately and exactly and how they can be measured
- how to form emulsions and foams and the physical properties required for stable foams and emulsions to form
- how to manipulate the wettability of surfaces
- why surfactants are active at interfaces and be able to choose which type/class of surfactant would be best to use in certain situations, specifically which would be good to form foams, emulsions, as dispersants and good wetting agents, which would be good to destabilise emulsions and foams

Prüfungsstoff

Lectures, problems, self learning and peer teaching

Literatur

Stokes R.J. &. Evans D.F, Fundamentals of Interfacial Engineering, Wiley, 1997
Berg, JC An introduction to interfaces and colloids: The bridge to nanoscience
Aveyard, R. and Haydon, D. A. An Introduction to the Principles of Surface Chemistry. University Press: Cambridge, 1973
P. Becher, Emulsions and Emulsion Technology (Marcel Dekker), 1983. (see also 1985, 1987)
M.J. Rosen, Surfactants and Interfacial Phenomena, 3rd Ed., John Wiley & Sons Inc, Chichester, 2004.
K. Holmberg, et al., Surfactants and Polymers in Aqueous Solutions, 2nd Ed., John Wiley & Sons Inc, Chichester, 2003.

Zuordnung im Vorlesungsverzeichnis

PC-5, MC-3, A.4. D.1

Letzte Änderung: Mi 07.06.2017 09:50